Device for raising and lowering windows



I Nov. 16, 1926.

J. E. HODSQN DEVICE FOR RAISING AND LOWERING WINDOWS Filed Nov. 28, 1924 I an UNIT En Patented Nov. 16, 1926.

i BEBNICK, OF CHELSEA, ENGLAND.

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FREDERICK WILLI M 'nnvicn Fora RAISING Ann Lownnnve wIniJowsQ Application filed November 28, 1924. Serial No. 752,715, and in Great Britain December 21, 1923.

This invention relates to means for'raising and lowering windows and has particuing and lowering windows are provided wherein a manually operated rotary device is directly connected by flexible means to a window in such a manner that the window will remain in any position to which it is ad justed. The flexible means preferably comprises a belt or chain having means to maintain it under constant tension and attached to the lower portion of the window so that movement of the rotary operating device is communicated directly to the window to raise or lower the same in accordance with the direction of rotation. 1 i v Reference will now be made to the accompanying drawings which illustrate by way of example a construction according to the invention and in which Figure 1 is a front elevation partly in section, and c Figure 2 is a cross sectional elevation on the line 2-2 of Figure 1.

In the drawings, a indicates a window pane which is slidably mounted in grooves 6 formed in a framework c which may be part of the door or body of an automobile vehicle. The lower edge of the window a has secured thereto a'clip d which may be cemented in place or secured as shown by studs and nuts The ends of a chain 9 are also attached to the clip d or an endless chain may be employed secured at one point to the clipd. The upper stretch of the chain 9 passes around a sprocket wheel k mounted coaxially with a worm wheel 71 meshing with a worm j mounted or formed upon the spindle is of an operating handle Z. The sprocket wheel h, worm wheel 71 andworm y are-mounted in bearings formed in a housing m carried in a transverse member a of the framework c.

The lower stretch of the chain'g passes around a rollero mounted in'bearings p formed integral with or secured to a base plate 9 which is slotted to pass over a pair of studs '1 projecting upwardly from the base member s of the-framework 0. Between the heads of the studslc and the upper surface of the base plate 9 are disposed coiled springs V t the tendency of which is to urge the plate 9 and the roller 0 in the downward direction.

In the operation of the device above described, the efiect of the springs is to main tain the chain 9 always under tension so that any movement imparted to the operating handle Z is communicated directly to the window a which will move upwards or downwards according to the direction of rotation imparted to the said operating handle whilst, I

owing to the interposition of the worm wheel a and worm j in the operating connections tllBWlIlClOW a cannot slip-downwards from any position to which it is adjusted as would otherwise be the case were the window susceptible to the vibration of the vehicle.

' The invention is not limited-to the exact details of construction above described asan endless belt may be substituted for the chain 9 and instead of the worm and worm Wheel a ployed. ever, it is necessary to employ a check action to prevent the window slipping down from a have coaxially mounted therewith a friction disc both being slidable and normally held apart by a resilient device. formed on the wheel and disc are adapted to engage with fixed members to overcome the 'eifects of handle weight and vibration but being relieved automatically when therhan dle is rotated to raise the window.

The combination, with a window frame pair of mitre wheels may be em-. c In this latter construction; how- Friction faces provided with a base member which'extends across its bottom. said frame having valso a transverse member secured above the base member and projecting part-way over it, and a window pane slidablein the said frame over the base member and to one side of the transverse member; of means for sliding the Window pane, comprising a driving Wheel and self-sustaining operating mechanism therefor mounted directly on the said transverse member, a spring-pressed WhGEBl atcached directly below the lower edge of said Window vpane and to the said base member,

and a driving chain passing over the two driving Wheels and its ends attached to the lower edge of said Window pane, said driving heels having their axes arranged parallel to each other and t0 the face ofthe Window pane. V

In Witness whereof I affix my signature.

JAMES ERNEST HUDSON. 

